炮掘巷道工字钢棚防倒装置的研制

Development of Collapseproof Install of I-steel shed in five Driving Roadway

在架工字钢梯形棚巷道的掘进中 ,放炮常出现倒棚。分析了倒棚的主要原因 ,并研制出实用的防倒装置。该防倒装置 ,具有结构小巧、使用方便、加工容易、防倒效果好等特点。使用此装置 ,可提高掘进工效 。

When coalroadway was mined in I-steel trapezoidal shed,fire often make shed collapse,this paper analyzes main cause of collapse and develops out preventive install.This install is small,easy to use and make,has a good results for collapseproof.It can improves mining efficiency and gains good economic returns.